인공지능 : 날씨,조명 판단 및 적응적 색상모델을 이용한 도로주행 영상에서의 이정표 검출

김태형 ( Tae Hung Kim ),임광용 ( Kwang Yong Lim ),변혜란 ( Hye Ran Byun ),최영우 ( Yeong Woo Choi ) 한국정보처리학회 2015 정보처리학회논문지. 소프트웨어 및 데이터 공학 Vol.4 No.11

Road-view object classification methods are mostly influenced by weather and illumination conditions, thus the most of the research activities are based on dataset in clean weathers. In this paper, we present a road-view object classification method based on color segmentation that works for all kinds of weathers. The proposed method first classifies the weather and illumination conditions and then applies the weather-specified color models to find the road traffic signs. Using 5 different features of the road-view images, we classify the weather and light conditions as sunny, cloudy, rainy, night, and backlight. Based on the classified weather and illuminations, our model selects the weather-specific color ranges to generate Gaussian Mixture Model for each colors, Green, Yellow, and Blue. The proposed method successfully detects the traffic signs regardless of the weather and illumination conditions.

해면 다중경로 환경에서 정밀 추적을 위한 해면 저고도 표적의 고각 측정

김태형(Tae-Hyung Kim),정채현(Chae-Hyun Jung),이행수(Hang-Soo Lee),안지훈(Ji-Hoon An),김상현(Sang-Hyun Kim),박준현(June-Hyune Park) 한국전자파학회 2021 한국전자파학회논문지 Vol.32 No.4

해면 저고도(sea-skimming) 표적은 해면의 다중경로 신호 때문에 모노펄스 처리로 정확한 고각 측정이 어렵다. 해면 저고도의 대함 미사일을 추적하여 격추하기 위해서, 본 논문은 CIWS(close-in weapon system)의 레이다가 안테나의 제한된 빔 폭 조건에서 적은 오차로 표적의 고각을 측정하는 방법을 제시한다. 본 논문의 방법은 Eckersten의 “복소수 각”의 구현을 기반으로 한다. Eckersten의 방법의 한계와 개선점을 파악하고, CIWS의 레이다에 구체적인 적용 및 확장 방법을 설계하여 해면 저고도 표적의 고각을 정확하고 효과적으로 추정한다. 다양한 안테나 빔 폭 및 송신주파수 조건에서 시뮬레이션을 통해 제시한 방법의 성능을 평가하였다. Accurately measuring elevation angles of sea-skimming targets via monopulse processing is difficult owing to the multipath signals of sea surfaces. For tracking and shooting down sea-skimming anti-ship missiles, this study presents a fine measurement method for elevation angles of targets under constrained conditions in terms of antenna beam widths of the close-in weapon system (CIWS) radar. This method is based on Eckersten’s implementation of the “complex angle”. We design a specific application and extension of Eckersten’s method, based on its limitations and scope for improvement, to the CIWS radar for estimating elevation angles of sea-skimming targets accurately and effectively. We also evaluate the performance of the proposed method through simulations under various antenna beam widths and transmission frequencies.

전투기 레이다를 위한 기만적 전파방해 대응의 설계 및 시험분석

김태형(Tae-Hyung Kim),백승열(Seung-Yeol Beak),전형원(Hyeong-Won Jeon),박준현(June-Hyune Park),이성원(Sung-Won Lee),강명일(Myoung-Il Kang),이행수(Hang-Soo Lee) 한국전자파학회 2024 한국전자파학회논문지 Vol.35 No.2

p-type 태양광 모듈에 대한 LeTID 민감도 저감을 위한 공정 조건 영향성 평가 분석

민용기(Yongki Min),김태형(Tea-hung Kim),김인애(In-ae Kim),김충현(Chung-hyun Kim),최주호(Jo-ho Choi),박태열(Tae-yoel Park),이은주(Eun-joo Lee),김동섭(Dong-seop Kim) 한국태양에너지학회 2019 한국태양에너지학회 학술대회논문집 Vol.2019 No.10

신뢰성있는 시험데이타 선택을 위한 경로도메인 기반 신뢰도 제시

장민석(Min-Seok Jang),황익순(Ik-Soon Hwang),김태형(Tae-Hyong Kim),전상현(Sang-Hyun Jeon),송명렬(Myong-Lyol Song),김동연(Dong-Yon Kim),이길흥(Kil-Hung Lee),이재용(Jai-Yong Lee) 한국정보과학회 1998 정보과학회논문지(B) Vol.25 No.11

프로그램시험(program testing)의 신뢰성있는 수행을 위해 현재까지 데이타부분시험(data part testing) [1-11] 분야에서 다양한 시험데이타선택방법(test data selection strategy)들이 제안되었다. 하지만 이들에 의해 추출한 시험데이타가 오류를 검출하는데 있어서 얼마나 신뢰성 있는지는 의문일 뿐만 아니라 구체적인 시험수행방법을 제시하지 못한채 이론에만 그치고 있다. 이는 오류의 유형 및 그 오류가 프로그램에 미치는 특성을 제대로 분석하지 않았기 때문에 발생한다. 본 논문의 목적은 이 문제점을 해결하기 위해 우선적으로 오류를 경로도메인 관점에서 재정의하고, 선택한 데이타의 오류검출확률 즉, 신뢰도를 수식적으로 제시함으로써, 신뢰성있는 시험데이타선택방법을 제시하기 위한 이론적 바탕을 제공하는 데에 있다. For the purpose of reliable program testing in the area of software engineering, there have been recently a variety of test data selection strategies in the field of data part testing. Not only, however, it is doubtful how reliably the test data derived from the above methods is able to detect program faults, but also in many cases they are only theoretical and the concrete testing methodology is not suggested. It is because they do not analyze the types of faults and the characteristics of their effects on program well. The object of this paper is to give the theoretical foundation for abtaing the more reliable domain-based test data selection strategy through redefining faults in the respect of path-domain, classifying them into three types and then deriving the fault detecting probability or reliability of a test data in mathematical manner.

新羅風流道의 體育思想에 관한 硏究

金泰亨,金元天 진주여자전문대학 1990 論文集 Vol.12 No.-

As a thought and a religion the Poongryudo Played a great role in Silla of the Three Kingdoms. The essence of this thought was the ways that man come in contact with all things in the universe and then get vitality that the profound ideas. In this thought, the origin of man's life was on Nature. The physical education thought was founded on humanism in Silla Kingdom. The ideal model which the Poongryudo had pursued was the whole man who harmonized with body and mind based on a theory that body and mind can not be separated. And the goal of this doctrines was embodying the fair and aboveboard man. The methods of the physical education were military prowess, sing and dance, physical training, play, military art, sightseeing. With these methods, the goals were not only making of body but also making of the whole man. This whole man through play and another physical training performed a part of discharging of ruled and military man. Sound mind and powerful body which was formed by these physical activity become potential energy of the unification of the Three Kingdoms. The fact that Silla has a clear physical education thought based on the poongryudo has a deep significance in the physical education thought history.

지구성 운동이 중년여성의 혈중지질농도에 미치는 영향

朴麟基,崔大雨,李明秀,徐在河,趙炳俊,金泰亨 충남대학교 체육과학연구소 2000 體育科學硏究誌 Vol.18 No.1

The purpose of this study was to identify the effect of endurance exercise program on the middle-aged women. Six subjects were recruited from among volunteers responding to advertisements placed around the university community. All subjects, with no experience in regular physical activity participated in an interventional training consisting of swimming and stretching three days a week for 10weeks. Pre-and post blood lipid levels, such as Total Cholesterol(TC), High Density Lipoprotein Cholesterol(HDL-C), Low Density Lipoprotein Cholesterol(LDL-C), and Triglyceride(TG) were measured. A paired t-test showed results that were significant the .05 level were HDL-C , LDL-C, TG, and TC/HDL-C Ratio. The main finding of the study was that the role of endurance training, as prescribed in our study has the effect of making improvements in blood lipid levels for the middle-aged women. 1. After a 10week period of endurance exercise, the Total Cholesterol(TC) level was higher than that of pre-test. But the difference no showed the statistical significance. 2. After a 10week period of endurance exercise, the High Density Lipoprotein Cholesterol(HDL-C) Low Density Lipoprotein Cholesterol(LDL-C). Triglyceride(TG) level was higher than that of pre-test. and the difference showed the Statistical significance. In conclusion, even though there was significant in blood lipid levels after endurance exercise, swimming has a beneficial on improving in the middle-aged women.

社會體育科 敎育課程의 開發硏究

李鐵煥,金泰亨,李任仙,金元天 진주여자전문대학 1990 論文集 Vol.13 No.-

The purpose of this study was carried out to know main tendency in curriculum of social sports department by developing program. The method of this study were of curriculums of social sports department in college and junior college, of low for the promotion of physical education and literature cited. For the development of curriculums in the social sports department, We must considered as follows ; 1. The systematic and well-planned teaching method for recreation to make good use of leisure time, as one way of life-long educations. 2. Scientific teaching method of physical education and expantion of its facilities, and improvement of people's qualification as leaders in the social sports field. 3. For the more positive and more creative social sports, the active participation and encouragement both in various trainings for qualification and in social sports programs. 4. For the performance of the justice of society, and the establishment of welfare state, the development of durable process of social sports and promotion for adjustment to be ahead of contemporary thends. The physical education, as one part of the general education, should keep being properly reformed and correct into more positive and more desirable direction in its contents and methods, keeping up with flow of incessant shifts of the times.

男子大學生의 體格·體型과 體力에 관한 硏究

李鐵煥,金泰亨 진주여자전문대학 1988 論文集 Vol.10 No.-

This study applied to 121 male college students from 17 to 20 years. Major objectives of this study were to find out basic information for body structure, physical fitness and performance of their future obtaining from the measurement, analysis and their correlations of physique, somatotype, body composition and the characteristics of physucal fitness. Results were following; 1. Physique ① Physiques were similar to standard physique of Korean. ② The height, weight and bone breadth of femur were lower than those of the male students of Japanese college, but skinfold and muscle girth were higher. 2. Body Composition ① % Fat was lower than standard value of Korean, but higher than Japanese. ② Body density was similar to Korean, but lower than Japanese. ③ Ponderal Index was lower than Japanese, was on the decrease in proportion to their age. 3. Somatotype ① Mean somatotype(S) was 3.79-4.09-3.08, endomorphic mesomorph. ② Analysis of distribution in 13 somatotype categories showed that were 67 students in endomorphy and central type, 34 in mesomorphy, 20 in ectomorphy. ③ % Fat in ABL group, muscle area in DEF and Ponderal Index and height in HIJ were higher than other. 4. Physical fitness and performance ① Standing broad jump and grip strength were higher than physical fitness standard of Japanese, sargent jump was lower. ② Analysis of physical fitness and performance in 13 somatotype categories showed that a specific characteristic and a specific somatotype went together. ③ Physical fitness in ABL group generally belonged under medium and low-ranking. Strength in DEF and flexibility in HIJ were higher than others. 5. Effects of physigue, body composition and somatotype on physical fitness and performance ① The height, weight, LBM, muscle area, bone breadth, muscle girth, body density, mesomorphy(higher), total skinfold, % Fat, mesomorphy (lower) effected on power. ② The height, Weight(higher), others(medium) effected on flexibility. ③ The height, weight, bone breadth, muscle girth, LBM, mesomorphy, muscle area (higher), Ponderal Index, ectomorphy (lower) effected on grip strength. 6. correlation ① There were positive correlations between physcal fitness and height and weight. ② There were positive correlations between strength and bone breadth, muscle girth and muscle area. ③ There were positive correlations between power and strength and mesomorphy. ④ There were positive correlations standing broad jump and sargent jump and other physical fitness components. ⑤ There was definitly positive correlation between trunk flexion and trunk extension. ⑥ There was highly positive correlation between left and right grip strength.